CN109357108B - Flexible special composite heat-proof sleeve and manufacturing method thereof - Google Patents

Flexible special composite heat-proof sleeve and manufacturing method thereof Download PDF

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Publication number
CN109357108B
CN109357108B CN201811535293.8A CN201811535293A CN109357108B CN 109357108 B CN109357108 B CN 109357108B CN 201811535293 A CN201811535293 A CN 201811535293A CN 109357108 B CN109357108 B CN 109357108B
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heat
coating layer
glass fiber
silicone rubber
coating
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CN109357108A (en
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黄明国
廖禹平
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Hunan Xingxin Aetrospece New Material Co ltd
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Hunan Xingxin Aetrospece New Material Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/028—Composition or method of fixing a thermally insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/08—Means for preventing radiation, e.g. with metal foil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a flexible special type composite heat-proof sleeve, which comprises a bottom layer, wherein the bottom layer is made of a first silicone rubber coated fabric, the outer surface of the first silicone rubber coated fabric is coated with a continuous aerogel low heat-conducting coating layer, the outer surface of the aerogel low heat-conducting coating layer is coated with a continuous phase-change energy-storage coating layer, a first organic silicone glass fiber adhesive tape is adhered to the outer surface of the phase-change energy-storage coating layer, a second silicone rubber coated fabric is coated outside the first organic silicone glass fiber adhesive tape, the outer surface of the second silicone rubber coated fabric is coated with a continuous high-temperature-resistant heat-insulating flame-retardant coating layer, a second organic silicone glass fiber adhesive tape is adhered to the outer surface of the high-temperature-resistant heat-insulating flame-retardant coating layer, and aluminum foil composite heat-proof cloth is adhered to the outer surface of the second organic silicone glass fiber adhesive tape. The invention also provides a manufacturing method of the heat-proof sleeve. The heat-proof sleeve has the advantages of convenient installation, good molding coordination and stable protection effect.

Description

Flexible special composite heat-proof sleeve and manufacturing method thereof
Technical Field
The invention relates to a thermal protection material for instruments, meters, electrical connectors and equipment for spaceflight, in particular to a thermal protection sleeve for ensuring that instruments and meter equipment in an aircraft are maintained within a certain temperature under the technical condition of long-term high radiation heat flow and a manufacturing method thereof.
Background
The heat protection materials used in the novel power system and the heat protection systems of the reentry type aircrafts, the near space aircrafts, the space exploration aircrafts and the like are key materials for design and development. The thermal protection material is particularly important for a telemetry control system of an aircraft, and the protection effect of the thermal protection material is directly related to the flight precision, the flight attitude and the like of the aircraft.
With the development and development of high-thrust carrier rockets, the supersonic aircraft is continuously and deeply researched, and higher requirements are put on heat-proof materials required by a telemetry control system.
During the flight of an aircraft, thermal protection materials for instruments and instrument devices in the cabin of the aircraft are in a contradictory state: the heat transfer of external temperature to instruments and instrument equipment is protected, and meanwhile, the heat generated by the instruments and instrument equipment due to the operation of the instruments and instrument equipment is guaranteed to be rapidly dissipated, so that heat accumulation is prevented, and the heat protection material is prevented from being invalid. Moreover, the space in the cabin body is relatively narrow, the shape of the built-in instruments and meter equipment is different, and the heat protection material is required to be flexible and light, has no excessive materials and is easy to install.
The existing ceramic-based heat protection material has the advantages of being hard, resistant to airflow scouring, flame retardant, resistant to high temperature and the like, but is high in heat conductivity, poor in heat insulation performance and easy to transfer heat. For instruments and instrument equipment in the cabin, the required heat protection material must also have the effects of heat protection and heat insulation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flexible special composite heat-proof sleeve capable of preventing heat and storing heat and a manufacturing method thereof.
In order to solve the technical problems, the invention relates to a technical scheme of a flexible special composite heat-proof sleeve, which comprises the following steps: the utility model provides a flexible special type composite heat-proof cover, includes the bottom of making the heat-proof cover by first silicone rubber coated fabric, the outward facing of first silicone rubber coated fabric scribbles continuous aerogel low heat conduction coating layer, the outer scribbles continuous phase change energy storage coating layer that scribbles of aerogel low heat conduction coating layer, phase change energy storage coating layer pastes outward has first organic silicon glass fiber sticky tape, first organic silicon glass fiber sticky tape outward coats and has second silicone rubber coated fabric, the outward facing of second silicone rubber coated fabric scribbles continuous high temperature resistant thermal-insulated fire-retardant coating layer, thermal-insulated fire-retardant coating layer outward coats and has second organic silicon glass fiber sticky tape, the outer aluminium foil composite heat-proof cloth that has of second organic silicon glass fiber sticky tape.
Preferably, the thickness of the first silicone rubber coated fabric and the second silicone rubber coated fabric is 0.2-0.3 mm, the thickness of the aerogel low heat conduction coating layer is 0.1-0.3 mm, the thickness of the phase change energy storage coating layer is 0.2-0.4 mm, and the thickness of the high temperature resistant heat insulation flame retardant coating layer is 0.6-1.0 mm.
Further, the heat-proof sleeve is provided with a crack-stopping hole and a rope penetrating hole, and a stainless steel glass fiber rope penetrates through the rope penetrating hole.
Further, a hollow rivet is arranged on the heat-proof sleeve.
The invention relates to a manufacturing method of the flexible special composite heat-proof sleeve, which comprises the following process steps:
(1) coating fabric with first silicon rubber according to a mould to manufacture a bottom layer of the heat-proof sleeve;
(2) coating aerogel low-heat-conductivity paint on the outer surface of the first silicone rubber coated fabric, and forming a continuous aerogel low-heat-conductivity paint layer after the aerogel low-heat-conductivity paint is cured;
(3) coating phase-change energy-storage paint outside the aerogel low-heat-conductivity paint layer, and forming a continuous phase-change energy-storage paint layer after the phase-change energy-storage paint layer is solidified;
(4) sticking a first organic silicon glass fiber adhesive tape outside the phase-change energy storage coating layer;
(5) coating a second silicone rubber coated fabric outside the first silicone glass fiber rubber band;
(6) coating a high-temperature-resistant heat-insulating flame-retardant coating on the outer surface of the second silicon rubber coated fabric, and forming a continuous high-temperature-resistant heat-insulating flame-retardant coating layer after the second silicon rubber coated fabric is cured;
(7) sticking a second organic silicon glass fiber tape outside the high-temperature-resistant heat-insulating flame-retardant coating layer;
(8) attaching aluminum foil composite heat-proof cloth outside the second organic silicon glass fiber adhesive tape;
(9) and punching a crack prevention hole, a rope threading hole, an assembly rivet and a slotting at the specified position of the heat-proof sleeve according to the drawing.
In one embodiment, the aerogel low thermal conductivity coating is prepared from addition type liquid silicone rubber and silicon dioxide aerogel powder according to the mass ratio of 60-80: 1 to 5; the phase change energy storage coating is prepared from addition type liquid silicone rubber and an organic solid-solid phase change material with the phase change temperature of 180-190 ℃ according to the mass ratio of 3:2, mixing the materials in proportion; the high-temperature-resistant heat-insulating flame-retardant coating is prepared from addition type liquid silicon rubber, zinc borate, silicon dioxide aerogel powder, glass powder, ceramic powder, aluminum hydroxide, light magnesium oxide and mica powder according to the mass ratio of 80-120: 4:3:10 to 14:10 to 14:2:2:3, and mixing the materials in proportion.
Preferably, the brushing methods in the steps (2), (3) and (6) are the same, wherein palm fibers are adopted to brush the paint, the thickness of the paint is increased by 0.03-0.06mm each time, after the brushing is finished, the product is naturally dried in a room with the temperature of 20-30 ℃ and the relative humidity of less than 65%, the time is 10-15 minutes, and then the naturally dried product is placed in an electric heating box with the temperature of 120 ℃ to be baked for 40-60 minutes, so that the paint is completely cured, and then the next brushing and curing are carried out.
The flexible special composite heat-proof sleeve produced by the method has the advantages of convenient installation, good molding coordination and stable protection effect, and can ensure that the surface temperature of instruments and meters in the heat-proof sleeve is always lower than 60 ℃ when the working environment is the following given first heat flow condition and the given second heat flow condition.
Heat flow condition one
Heat flow condition two
Drawings
FIG. 1 is a schematic structural view of a flexible special composite heat shield of the present invention;
the reference numerals are:
1-a first silicone rubber coated fabric, 2-an aerogel low heat conduction coating layer, 3-a phase change energy storage coating layer, 4-a first organic silicon glass fiber tape, 5-a second silicone rubber coated fabric, 6-a high-temperature-resistant heat-insulating flame-retardant coating layer, 7-a second organic silicon glass fiber tape and 8-a mold.
Detailed Description
As shown in fig. 1, the preferred embodiment of the present invention with respect to a flexible specialty composite heat shroud is: the flexible special type composite heat-proof sleeve comprises a bottom layer of a heat-proof sleeve made of a first silicone rubber coated fabric 1, wherein the outer surface of the first silicone rubber coated fabric 1 is coated with a continuous aerogel low heat-conducting coating layer 2, the outer surface of the aerogel low heat-conducting coating layer 2 is coated with a continuous phase-change energy-storage coating layer 3, a first organic silicon glass fiber tape 4 is adhered to the outer surface of the phase-change energy-storage coating layer 3, a second silicone rubber coated fabric 5 is coated on the outer surface of the first organic silicon glass fiber tape 4, the outer surface of the second silicone rubber coated fabric 5 is coated with a continuous high-temperature-resistant heat-insulating flame-retardant coating layer 6, the outer surface of the second high-temperature-resistant heat-insulating flame-retardant coating layer is adhered with a second organic silicon glass fiber tape 7, and an aluminum foil composite heat-proof cloth 8 is adhered to the outer surface of the second organic silicon glass fiber tape; the heat-proof sleeve is provided with a crack-stopping hole, a rope penetrating hole and a hollow rivet, and a stainless steel glass fiber rope penetrates through the rope penetrating hole.
The thickness of the first silicon rubber coated fabric 1 and the second silicon rubber coated fabric 5 is 0.2-0.3 mm, the thickness of the aerogel low heat conduction coating layer 2 is 0.1-0.3 mm, the thickness of the phase change energy storage coating layer 3 is 0.2-0.4 mm, and the thickness of the high temperature resistant heat insulation flame retardant coating layer 6 is 0.6-1.0 mm.
The invention relates to a manufacturing method of a flexible special composite heat-proof sleeve, which comprises the following process steps:
(1) Manufacturing mould
Providing a dimension drawing of instruments, meters and equipment to be protected by a customer design department, and processing a die according to the drawing;
(2) Cutting the silicon rubber coated fabric according to the mold development diagram
Cutting the silicone rubber coated fabric according to a mold development diagram, selecting an optimal scheme, and controlling the generation of redundancy;
(3) Overlap joint brushing addition type liquid silicone rubber
Brushing the addition type liquid silicone rubber on the lap joint of the silicone rubber coated fabric, wherein the distance between the lap joint and the edge is 15mm;
(4) Overmolding on a mold
Coating the silicon rubber coated fabric on a mould to form a bottom layer of a heat-proof sleeve, and fixing the bottom layer by transparent glue and drawing pins to form a first silicon rubber coated fabric;
(5) Dismantling fastening device
After 24 hours of room temperature treatment or high temperature baking at 120 ℃ for 1 hour, dismantling the transparent adhesive tape and the drawing pin for fixing;
(6) Low-heat-conductivity coating prepared from aerogel
The method comprises the steps of mixing addition type liquid silicone rubber and silicon dioxide aerogel powder according to a mass ratio of 60-80: mixing the materials in a proportion of 1 to 5 to obtain the aerogel low heat conduction coating;
(7) Low-heat-conductivity aerogel coating for brushing
Manually brushing a palm fiber brush on the silicone rubber coated fabric to ensure no flow mark, wherein the thickness of the coated fabric is about 0.03-0.06mm;
(8) Air-drying
After the brushing is finished, the product is naturally dried in a room with the temperature of 25+/-5 ℃ and the relative humidity of less than 65 percent for 10 to 15 minutes;
(9) Baking and curing
Baking the naturally dried product in an electric heating box at 120 ℃ for 40-60min; repeating the steps (7) - (9) for a plurality of times to enable the thickness of the aerogel low heat conduction coating layer to reach 0.1-0.3 mm;
(10) Preparing phase-change energy-storage paint
The addition type liquid silicone rubber and an organic solid-solid phase change material with the phase change temperature of 180-190 ℃ are mixed according to the mass ratio of 3:2, mixing the materials in proportion to obtain the phase-change energy-storage coating;
(11) Brushing phase-change energy-storage paint
Manually brushing the palm fibers to brush the paint, ensuring no flow marks, and thickening the paint by 0.03-0.06mm each time;
(12) Air-drying
After the brushing is finished, the product is naturally dried in a room with the temperature of 25+/-5 ℃ and the relative humidity of less than 65 percent for 10 to 15 minutes;
(13) Baking and curing
Baking the naturally dried product in an electric heating box at 120 ℃ for 40-60min; repeating the steps (11) - (13) for a plurality of times to enable the thickness of the phase-change energy storage coating layer (3) to reach 0.2-0.4 mm;
(14) Adhesive tape attached with organosilicon glass fiber cloth
Cutting the organic silicon glass fiber cloth adhesive tape according to the formed heat-proof sleeve, and applying the cut organic silicon glass fiber cloth adhesive tape on a product to form a first organic silicon glass fiber cloth adhesive tape;
(15) Cutting out the silicone rubber coated fabric again
Cutting the silicone rubber coated fabric again on the basis of the above, and cutting according to the required size of the formed heat-proof sleeve;
(16) Liquid silicone rubber for painting
Coating liquid silicone rubber on the lap joint of the second silicone rubber coated fabric, wherein the distance between the lap joint and the edge is 15mm;
(17) Over-molding on a molded heat shield
After the cut sample is coated on the formed heat-proof sleeve, fixing the sample by using a transparent adhesive tape and a drawing pin to form a second silicon rubber coated fabric;
(18) Dismantling fastening device
After 24 hours of room temperature treatment or baking at 120 ℃ for 1 hour, dismantling the transparent adhesive tape and the drawing pin for fixing;
(19) Preparing high-temperature-resistant heat-insulating flame-retardant coating
Adding addition type liquid silicon rubber, zinc borate, silicon dioxide aerogel powder, glass powder, ceramic powder, aluminum hydroxide, light magnesium oxide and mica powder according to the mass ratio of 80-120: 4:3:10 to 14:10 to 14:2:2:3, mixing the materials in proportion to obtain the high-temperature-resistant heat-insulating flame-retardant coating;
(20) High-temperature-resistant heat-insulating flame-retardant coating for brush coating
Manually brushing the palm fibers to brush the paint, ensuring no flow marks, and thickening the paint by 0.03-0.06mm each time;
(21) Air-drying
After the brushing is finished, the product is naturally dried in a room with the temperature of 25+/-5 ℃ and the relative humidity of less than 65 percent for 10 to 15 minutes;
(22) Baking and curing
Baking the naturally dried product in an electric heating box at 120 ℃ for 40-60min; repeating the steps (20) - (22) for a plurality of times to enable the thickness of the high-temperature-resistant heat-insulating flame-retardant coating to reach 0.6-1.0 mm;
(23) Adhesive tape attached with organosilicon glass fiber cloth
Cutting the organic silicon glass fiber cloth adhesive tape according to the formed heat-proof sleeve, and applying the cut organic silicon glass fiber cloth adhesive tape on a product to form a second organic silicon glass fiber cloth adhesive tape;
(24) Drawing lines, cutting excess materials, punching, riveting and slotting
Drawing lines according to drawing requirements, cutting to a specified size, punching crack-stopping holes and rope-threading holes at specified positions according to drawing, assembling rivets and slotting;
(25) Composite heat-proof cloth with adhered aluminum foil
Cutting the aluminum foil composite heat-proof cloth according to the formed heat-proof sleeve, and applying the heat-proof cloth on a product;
(26) With tied stainless steel glass fibre ropes or rivets
According to the drawing requirement, a stainless steel glass fiber rope is used for penetrating through the rope penetrating hole, redundant parts are bound into groups (untied during installation), a screw rod is used for penetrating through a hollow rivet, and the hollow rivet is fixed by a nut.
The foregoing embodiments are preferred embodiments of the present invention, and in addition, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.
In order to facilitate understanding of the improvements of the present invention over the prior art, some of the figures and descriptions of the present invention have been simplified, and some other elements have been omitted from this document for clarity, as will be appreciated by those of ordinary skill in the art.

Claims (6)

1. A flexible special composite heat-proof sleeve is characterized in that: the heat-resistant coating comprises a bottom layer of a heat-resistant sleeve made of a first silicone rubber coated fabric (1), wherein the outer surface of the first silicone rubber coated fabric (1) is coated with a continuous aerogel low heat-conducting coating layer (2), the outer surface of the aerogel low heat-conducting coating layer (2) is coated with a continuous phase-change energy-storage coating layer (3), a first organic silicon glass fiber tape (4) is adhered to the outer surface of the phase-change energy-storage coating layer (3), a second silicone rubber coated fabric (5) is coated on the outer surface of the first organic silicon glass fiber tape (4), the outer surface of the second silicone rubber coated fabric (5) is coated with a continuous high-temperature-resistant heat-insulating flame-retardant coating layer (6), a second organic silicon glass fiber tape (7) is adhered to the outer surface of the second organic silicon glass fiber tape (7), and an aluminum foil composite heat-resistant cloth (8) is adhered to the outer surface of the second organic silicon glass fiber tape (7); the aerogel low heat conduction coating is prepared from addition type liquid silicone rubber and silicon dioxide aerogel powder according to the mass ratio of 60-80: 1 to 5; the phase change energy storage coating is prepared from addition type liquid silicone rubber and an organic solid-solid phase change material with the phase change temperature of 180-190 ℃ according to the mass ratio of 3:2, mixing the materials in proportion; the high-temperature-resistant heat-insulating flame-retardant coating is prepared from addition type liquid silicon rubber, zinc borate, silicon dioxide aerogel powder, glass powder, ceramic powder, aluminum hydroxide, light magnesium oxide and mica powder according to the mass ratio of 80-120: 4:3:10 to 14:10 to 14:2:2:3, and mixing the materials in proportion.
2. The flexible specialty composite heat shroud of claim 1, wherein: the thickness of the first silicon rubber coating fabric (1) and the second silicon rubber coating fabric (5) is 0.2-0.3 mm, the thickness of the aerogel low heat conduction coating layer (2) is 0.1-0.3 mm, the thickness of the phase change energy storage coating layer (3) is 0.2-0.4 mm, and the thickness of the high temperature resistant heat insulation flame retardant coating layer (6) is 0.6-1.0 mm.
3. The flexible specialty composite heat cover according to claim 1 or 2, wherein: the heat-proof sleeve is provided with a crack-stopping hole and a rope penetrating hole, and a stainless steel glass fiber rope penetrates through the rope penetrating hole.
4. The flexible specialty composite heat cover according to claim 1 or 2, wherein: and hollow rivets are arranged on the heat-proof sleeve.
5. The manufacturing method of the flexible special composite heat-proof sleeve is characterized by comprising the following process steps: (1) coating fabric with first silicon rubber according to a mould to manufacture a bottom layer of the heat-proof sleeve; (2) coating aerogel low-heat-conductivity paint on the outer surface of the first silicone rubber coated fabric, and forming a continuous aerogel low-heat-conductivity paint layer after the aerogel low-heat-conductivity paint is cured; (3) coating phase-change energy-storage paint outside the aerogel low-heat-conductivity paint layer, and forming a continuous phase-change energy-storage paint layer after the phase-change energy-storage paint layer is solidified; (4) sticking a first organic silicon glass fiber adhesive tape outside the phase-change energy storage coating layer; (5) coating a second silicone rubber coated fabric outside the first silicone glass fiber rubber band; (6) coating a high-temperature-resistant heat-insulating flame-retardant coating on the outer surface of the second silicon rubber coated fabric, and forming a continuous high-temperature-resistant heat-insulating flame-retardant coating layer after the second silicon rubber coated fabric is cured; (7) sticking a second organic silicon glass fiber tape outside the high-temperature-resistant heat-insulating flame-retardant coating layer; (8) attaching aluminum foil composite heat-proof cloth outside the second organic silicon glass fiber adhesive tape; (9) and punching a crack prevention hole, a rope threading hole, an assembly rivet and a slotting at the specified position of the heat-proof sleeve according to the drawing.
6. The method for manufacturing the flexible special composite heat-proof sleeve according to claim 5, which is characterized in that: the brushing methods in the steps (2), (3) and (6) are the same, wherein palm fibers are adopted to brush the paint, the thickness of the paint is increased by 0.03-0.06mm each time, after the painting is finished, the product is naturally dried in a room with the temperature of 20-30 ℃ and the relative humidity of less than 65%, the time is 10-15 minutes, and then the naturally dried product is baked in an electric heating box with the temperature of 120 ℃ for 40-60 minutes, so that the paint is completely cured, and then the next painting and curing are carried out.
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